US131299A - Improvement in curtain-fixtures - Google Patents
Improvement in curtain-fixtures Download PDFInfo
- Publication number
- US131299A US131299A US131299DA US131299A US 131299 A US131299 A US 131299A US 131299D A US131299D A US 131299DA US 131299 A US131299 A US 131299A
- Authority
- US
- United States
- Prior art keywords
- improvement
- curtain
- fixtures
- slide
- guides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000003813 thumb Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
- F16B2/185—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles using levers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0891—Linear path
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32532—Clamped members
Definitions
- the object of my invention is to provide an improvement in that class of devices which are employed to receive the lower part of a cord such asis used to raise and lower curtains; and it consists in a novel construction by which I am enabled to easily and accurately adjust the pulley to different or varying lengths of the cord and retain it securely at any point.
- Figure l is a vertical section.
- Fig. 2 is a front view.
- the slide B is short, and
- the short grooved slide B with its extended thumb piece C and the lever-spring D, in combination with the guides on the stationary piece A, substantially as and for the purpose above described.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adornments (AREA)
Description
H.' POLL'EY.
i Improvement in- CurtainFixtures. l 'N0. 131,299, Patented Sep. l0, 1872.
@mi e rl 1 ltllesus Inventur U ITE STATES PATENT OFFICE.
HENRY POLLEY, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO HENRY POLLEY AND ANTHONY ROSENFIELD, OF SAME PLACE.
IMPRovEMENT IN euRTAm-Fsxrunes.
Specification forming part of Letters Patent No. l3l,299, dated September 10, 1872.
SPuomIoATIoN. To all whom it may concern.-
Be it known that I, HENRYPOLLEY, of San Francisco city and county, State of California, have invented a Curtain- Fixture; 'and I do hereby declare the following description and accompanying drawing are sufficient to enable any person skilled in the art or science to which it mest nearly appertains to make and use my said invention without further invention or experiment.
The object of my invention is to provide an improvement in that class of devices which are employed to receive the lower part of a cord such asis used to raise and lower curtains; and it consists in a novel construction by which I am enabled to easily and accurately adjust the pulley to different or varying lengths of the cord and retain it securely at any point.
Referring to the accompanying drawing for a more complete explanation of my invention, Figure l is a vertical section. Fig. 2 is a front view.
A is the portion which is screwed to the window-casing, and it is provided with guides on each side, as shown. The slide B is short, and
has a groove in each side which moves upon the guides. This slide is extended out into a thumb-piece or lever, C, and a spring, D, is fastened below, which rests on the bottom ot' the part A and acts as a lever. The eect of this lever is to cramp or bind the short slat in the slide B against the guides and then hold it securely wherever it may be placed. By the use of the thumb piece the pressure can be relieved and the slide moved as may be desired. Other forms of springs may be used as a spiral, but the one shown is deemed most convenient. E is the pulley around which the cord passes.
Having thus described my invention, what I claim, and desire to secure by Letters Patent,.is-
The short grooved slide B, with its extended thumb piece C and the lever-spring D, in combination with the guides on the stationary piece A, substantially as and for the purpose above described.
In witness whereof I hereunto set my hand and seal.
HENRY POLLEY. [L s] Witnesses:
GEO. H. STRONG, C. M. RICHARDSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US131299A true US131299A (en) | 1872-09-10 |
Family
ID=2200716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US131299D Expired - Lifetime US131299A (en) | Improvement in curtain-fixtures |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US131299A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2767609A (en) * | 1952-06-24 | 1956-10-23 | Ex Corp | Spring urged nut having outwardly projecting teeth thereon |
| US4492170A (en) * | 1982-07-20 | 1985-01-08 | Am Fab, Inc. | Locking mechanism for vertically adjustable table |
-
0
- US US131299D patent/US131299A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2767609A (en) * | 1952-06-24 | 1956-10-23 | Ex Corp | Spring urged nut having outwardly projecting teeth thereon |
| US4492170A (en) * | 1982-07-20 | 1985-01-08 | Am Fab, Inc. | Locking mechanism for vertically adjustable table |
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